Home / 154,515.33-213,213.15-89,998.71

Finding the Fourth Proportional to 154,515.33, 213,213.15 and 89,998.71

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Solution

The fourth proportional to 154,515.33, 213,213.15 and 89,998.71 is: 124,187.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,515.33 : 213,213.15 = 89,998.71 : x
  2. Step 2: Convert to fraction form
    154,515.33/213,213.15 = 89,998.71/x
  3. Step 3: Cross multiply
    154,515.33x = 213,213.15 × 89,998.71
  4. Step 4: Simplify right side
    154,515.33x = 19,188,908,455.04
  5. Step 5: Solve for x
    x = 19,188,908,455.04/154,515.33
  6. Step 6: Final answer
    x = 124,187.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.